So we had a rather nice discussion over the recent paper on LBT observations of HR8799. Seemed a good discussion with mostly a few people who work in the field or closely related fields. If you missed it feel free to comment. And there was a question by @LeonBaloo about resonances which got lost. Any good definitions welcome. Start from the bottom when reading.

@nialldeacon: @johngizis true, but it says those kind of objects (formed by instability) are rare #astrojc

@Matt_Burleigh: @johngizis yes, which makes it so exciting and gives us all a lot to work on! #astrojc

@johngizis:We are still too much at the tip of the iceberg, only the widest, most massive planets can be detected. right? #astrojc
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@nialldeacon: Think probably a good time to wrap up #astrojc will put a review post up soon so others can contribute

@Matt_Burleigh: @nialldeacon I guess we just dont have enough information yet. Fascinating system, poses many questions for different areas #astrojc

@nialldeacon: @Matt_Burleigh still would be one of the younger systems but doesn’t explain why it’s the only one #astrojc

@Matt_Burleigh: @nialldeacon @johngizis I think the sample were selected for youth (<~250My) #astrojc
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@nialldeacon: @Matt_Burleigh Are all the A stars in the sample of similar age? Maybe others have had planets which were kicked out dynamically? #astrojc